Question

8. Which of the following best describes an object with constant velocity?

Answer 1

Answer:

a = 0

Step-by-step explanation:

The answer choices were found else where.

To have a constant velocity, we need to have an acceleration that is equal to 0. This is because if we have a sudden movement it will make the line on a graph go up dramatically then after the acceleration, the line will go back down because the velocity will drop. That will cause the velocity not to be consistent and in this case we need it to be.

Best of Luck!

Answer 2

C. Its acceleration is zero.

Step-by-step explanation:

Velocity is defined as the change in distance over time;

d₂- d₁ / t          whereby;

d₂ – final distance

d₁ - initial distance

t - time

Acceleration, on the other hand, is the change in velocity over time;

Δv / t      whereby;

v – velocity

t – time

When velocity is constant, change in velocity (Δv) is zero (0).

Therefore for acceleration to be zero (0), change in velocity has to be zero because;

Only when a  =  0/t  is zero (0)

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